# 算数运算符
print(9 / 2)  # 4.5
print(9 // 2)  # 4
print(9 % 2)  # 1
print(9 ** 3)  # 9*9*9
print(5 > 3)  # True  # 比较运算符
print(10 < 15 < 20)  # True
print(10 < 15 > 20)  # False
# 逻辑运算符 and or not
print(1 > 0 and 0 > 1)  # False
print(1 > 0 or 0 > 1)  # True
print(not 0 > 1)  # True